Head rest



FIG. 1 is a perspective view of a head rest, showing my new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a bottom plan view thereof;

FIG. 4 is a side elevational view thereof, the opposite side elevational view being identical;

FIG. 5 is a rear elevational view thereof; and

FIG. 6 is a front elevational view thereof; 

The ornamental design for a head rest, as shown and described. 